Jennifer U Le, Regine M Deguzman, Norman B Schmidt, Nicole A Short
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The role of impulsivity in the association between rumination and cannabis-related problems among trauma-exposed cannabis users.
Objectives: The Emotional Cascade Model posits that rumination is associated with impulsivity and risky behaviours such as substance use. Although trauma-exposed individuals often engage in rumination and problematic cannabis use, this model has not been tested on trauma-exposed cannabis users. Therefore, our study examines the direct and indirect effects between rumination and its subtypes with problematic cannabis use among trauma-exposed cannabis users. We also examine how these associations occur through impulsivity.
Methods: A cross-sectional sample of 56 trauma-exposed young adult cannabis users (Mage = 21 years, 59% female, 73% white) self-reported rumination, impulsivity, and cannabis-related problems. All participants provided written informed consent, and procedures were approved by the university's Institutional Review Board and pre-registered.
Results: Regression analyses indicated total and brooding rumination were related to greater cannabis-related problems, after covarying for number of traumas and cannabis use frequency. Rumination, specifically brooding, was incrementally associated with greater cannabis-related problems and had an indirect effect on cannabis-related problems through impulsivity. Consistent with hypothesis, rumination and impulsivity were incrementally associated with greater problematic cannabis use among trauma-exposed cannabis users.
Conclusion: The current study expands work on the Emotional Cascade Model by supporting the indirect effect of impulsivity in the association between rumination and problematic cannabis use.
期刊介绍：
The British Journal of Clinical Psychology publishes original research, both empirical and theoretical, on all aspects of clinical psychology: - clinical and abnormal psychology featuring descriptive or experimental studies - aetiology, assessment and treatment of the whole range of psychological disorders irrespective of age group and setting - biological influences on individual behaviour - studies of psychological interventions and treatment on individuals, dyads, families and groups
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